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asm: Fix utils::rational_mul optimization

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elad335 2024-10-24 10:12:50 +03:00 • committed by Elad
parent 3378b03c1f
commit a9a454faf7
1 changed files with 3 additions and 1 deletions
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4
rpcs3/util/asm.hpp
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@ -410,10 +410,12 @@ namespace utils
return static_cast<T>(value * u64{numerator} / u64{denominator}); return static_cast<T>(value * u64{numerator} / u64{denominator});
} }
#if is_u128_emulated
if constexpr (sizeof(T) <= sizeof(u128) / 2) if constexpr (sizeof(T) <= sizeof(u128) / 2)
{ {
return static_cast<T>(value * u128{numerator} / u64{denominator}); return static_cast<T>(u128_from_mul(value, numerator) / u64{denominator});
} }
#endif
return static_cast<T>(value / denominator * numerator + (value % denominator) * numerator / denominator); return static_cast<T>(value / denominator * numerator + (value % denominator) * numerator / denominator);
} }